Are you aware of these? Have you read any of their monographs, especially ones from this high of a degree? I have only been able to come across non-English monographs in the first 3 degrees, and not in a set like this is. There is a great deal of esoteric knowledge contained within, but when I try to search for some of the terms, phrases and concepts they appear to practically be scrubbed from the Internet. That's one of the factors that seems to me to lend much credibility to this.

If you are interested in seeing more I'd be happy to provide you with a sample for closer inspection. All 180 are in .pdf format, so if you find it to be worth pursuing, I can find a way to get you the rest of them.